THE WOMEN Mr Todd had a secret three year affair with the chief executive of Greater Manchester Chamber of Commerce, Angie Robinson. But there are allegations that he had other relationships with around five women who worked for him at GMP. A source said: "Because of his important role in counter terrorism there is a potential security risk if Mr Todd had affairs - that is why those allegations will be looked into - because of the risk of blackmail.

"Women who he is believed to have been involved with will be asked to give information voluntarily - they cannot be made to give evidence."

THE TEXT MESSAGES Mr Todd was never seen without his Blackberry handheld computer and the inquiry will try to establish whether he used his mobile phone and Blackberry inappropriately while on duty to contact women via text and email. One source said: "He used his Blackberry compulsively - even during meetings." He sent text messages from Snowdon where he died, one to Mrs Robinson and another "distressing" message to a friend and serving officer at the Met.

His Blackberry was found near his body.

THE POLICE CAR As part of his job Mr Todd had an unmarked car with tinted windows and a driver. The inquiry will seek to establish whether there was any inappropriate use of the vehicle. His driver is expected to be interviewed.

THE EXPENSES Mr Todd's finances will be examined, particularly his expenses.

THE COMPUTER Investigators are expected to scrutinise Mr Todd's desk top computer to see what websites he looked at even though there is no suggestion of any wrongdoing.